Ash-sifter



` UNITED vSTATES PATENT OFFICE.

LoUIsA YoUNGQUIsT, FRED L.` N. MEHETENsANU AUGUST YoUNGQUIsT,

' or MILWAUKEE, WISCONSIN.

ASH-SIFTER.

SPECIFICATION forming part .of I Letters Fatent N0. 517,636, dated April3, 1894. i

Application filed June 21,1893. Serial No. 478,387. No model.)

at Milwaukee, in the county of Milwaukee and State of'Wisconsin, haveinvented a new and useful Ash-Sifter, of which thefollowin'g is aspecification.

The invention relates to improvements in ash sifters.-

The object of the present invention is to improve the construction ofrotary ash sifters, to prevent the escape of dust during the operationof sifting, and to enable the cinders to be readily removed when theoperation of sifting is completed.-

The invention consists in the lconstruction and novel combination andarrangement of parts hereinafter fully described, illustrated in theaccompanying drawings, and pointed out in the claim hereto appended.

In the drawings: Figure lis a perspective View of an ash sifterconstructed in accordance with this invention.` Fig. 2 is a transversesectional view. Fig. 3 is a detail perspective view of the cylindricalsifter detached, the removable section thereof being slightly separated.Fig. l isa detail perspective view of one of the slides. Fig. 5 is adetail sectional view of one side of the casing, illustrating the mannerof securing the journal portions of the shaft in the bearing slots.

Similar numerals of reference indicate corresponding parts in all thefigures of the drawings.

. 1 designates a box or casing, having a hinged cover 2, and provided atits sides with vertical slots 3, receiving journal portions of ahorizontal shaft 4, which terminates in an exterior crank-handle 5, andwhich carries a cylindrical sifter 6. On the outer face of each side, atopposite sides of the vertical slots, are secured stationary plates 7,having their inner portions bent outward slightly to form verticalwaysfor the reception of aremovable slide 8, which are adapted to retainthe shaft against verticalmovement and t-o prevent the escape of dustduring the operation of sifting.' The lower end of the slide is providedwith 5o a curved recess 9, to tit the shaft, and the upper endof theslide is provided with an inward L.shaped bend 10 forming a rectangularportion which extends over the upper edge of the side of the box orcasing to close the top of the slot. The slides are adapted to bereadily withdrawn from the ways of the box or casing to enable thecylindrical sifter to be removed. Y,

The box or casing may be of any desirable construction and may consistof an ordinary barrel, and the sieve is retained against longitudinalmovement by collars 11. The front of the box or casing may be providedwith a pane of glass to enable the operator to see withinthe casing andinspect the sifter without opening the cover.

The cylindrical sieve 6 is provided Ywith solid circular heads 12, andit has a detachable section or cover 13, which is secured in placeduring the operation of siftingby hooks 14, and eyes 15. The hooks arepivoted to the outer-faces of the heads 12, and the eyes project fromthe ends of the removable section orcover of the sieve. The removablesection or cover 13 of the sieve is strength- .ened at Aits edges bymetal strips, and the body of the sieve is provided with longitudinalgrooves l16, to receive the edges of the removable section or cover. Thelongitudinal grooves 16, are formed by metal strips secured to the edgesof the body of the sieve,'and the removable section or cover is providedat itslongitudinal edges with exterior ribs 17, to enable it to bereadily grasped for removal.

It will be seen that the sifter is simple and comparatively inexpensivein construction, that dust is effectually prevented from escaping duringthe operation lof sifting, and that the cinders may be readily removedafter sifting. A Y

Changes in the form, proportion, and the minor details of constructionmay beresorted to without departing from the principle' or sacrificingany of the advantages of this invention.

What we claim is In asifter, the combination of acasing provided atopposite sides with vertical slots,

plates secured to the casing at opposite sides l of the slots andforming ways, a shaft jour- Ioo naled on the easing at the bottom of theslots, our own We have hereto aixed our signatures xo a rotary sievecarried by the shaft, and slides in the presence of two Witnesses.arranged in the Ways and provided at their lower ends with curvedrecesses and pro vided Y1? 5 at their upper ends with L-shaped angesAUGUST Y'OUNGQUIST engaging the upper edges of the casing and closingthe tops of the slots, substantially as Witnesses:

described. OSCAR SoHLoEMILoH,

In testimony that we claim the foregoing as FANNIE GORTZEN.

